pandas.core.window.rolling.Rolling.mean

Rolling.mean(*args, engine=None, engine_kwargs=None, **kwargs)

Calculate the rolling mean.计算滚动窗口的平均值

examples

The below examples will show rolling mean calculations with window sizes of two and three, respectively.

s = pd.Series([1, 2, 3, 4])
s.rolling(2).mean()
0    NaN
1    1.5
2    2.5
3    3.5
dtype: float64

s.rolling(3).mean()
0    NaN
1    NaN
2    2.0
3    3.0
dtype: float64